CL2020001922A1 - Integración compatible hacia atrás de técnicas de reconstrucción de alta frecuencia para señales de audio. - Google Patents
Integración compatible hacia atrás de técnicas de reconstrucción de alta frecuencia para señales de audio.Info
- Publication number
- CL2020001922A1 CL2020001922A1 CL2020001922A CL2020001922A CL2020001922A1 CL 2020001922 A1 CL2020001922 A1 CL 2020001922A1 CL 2020001922 A CL2020001922 A CL 2020001922A CL 2020001922 A CL2020001922 A CL 2020001922A CL 2020001922 A1 CL2020001922 A1 CL 2020001922A1
- Authority
- CL
- Chile
- Prior art keywords
- audio signal
- high frequency
- band
- audio signals
- frequency reconstruction
- Prior art date
Links
- 230000005236 sound signal Effects 0.000 title abstract 6
- 238000000034 method Methods 0.000 title abstract 5
- 230000010354 integration Effects 0.000 title 1
- 238000001914 filtration Methods 0.000 abstract 1
- 230000001172 regenerating effect Effects 0.000 abstract 1
- 230000003595 spectral effect Effects 0.000 abstract 1
- 230000017105 transposition Effects 0.000 abstract 1
Classifications
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/02—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using spectral analysis, e.g. transform vocoders or subband vocoders
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/167—Audio streaming, i.e. formatting and decoding of an encoded audio signal representation into a data stream for transmission or storage purposes
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/16—Vocoder architecture
- G10L19/18—Vocoders using multiple modes
- G10L19/24—Variable rate codecs, e.g. for generating different qualities using a scalable representation such as hierarchical encoding or layered encoding
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L19/00—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis
- G10L19/04—Speech or audio signals analysis-synthesis techniques for redundancy reduction, e.g. in vocoders; Coding or decoding of speech or audio signals, using source filter models or psychoacoustic analysis using predictive techniques
- G10L19/26—Pre-filtering or post-filtering
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- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS OR SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Processing of the speech or voice signal to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/60—General implementation details not specific to a particular type of compression
- H03M7/6005—Decoder aspects
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M7/00—Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
- H03M7/30—Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
- H03M7/60—General implementation details not specific to a particular type of compression
- H03M7/6011—Encoder aspects
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
Abstract
Se revela un método para decodificar un flujo de bits de audio codificado. El método incluye recibir el flujo de bits de audio codificado y decodificar los datos de audio para generar una señal de audio de banda baja decodificada. El método incluye además extraer metadatos de reconstrucción de alta frecuencia y filtrar la señal de audio de banda baja decodificada con un banco de filtros de análisis para generar una señal de audio de banda baja filtrada. El método también incluye extraer una bandera que indica si se debe realizar traslación espectral o transposición armónica en los datos de audio y regenerar una porción de banda alta de la señal de audio utilizando la señal de audio de banda baja filtrada y los metadatos de reconstrucción de alta frecuencia de acuerdo con la bandera.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US201862622205P | 2018-01-26 | 2018-01-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
CL2020001922A1 true CL2020001922A1 (es) | 2020-10-23 |
Family
ID=67394797
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CL2020001922A CL2020001922A1 (es) | 2018-01-26 | 2020-07-22 | Integración compatible hacia atrás de técnicas de reconstrucción de alta frecuencia para señales de audio. |
CL2020002392A CL2020002392A1 (es) | 2018-01-26 | 2020-09-15 | (divisional de solicitud 1922-2020) integración compatible hacia atrás de técnicas de reconstrucción de alta frecuencia para señales de audio. |
CL2020002393A CL2020002393A1 (es) | 2018-01-26 | 2020-09-15 | (divisional de solicitud 1922-2020) integración compatible hacia atrás de técnicas de reconstrucción de alta frecuencia para señales de audio. |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CL2020002392A CL2020002392A1 (es) | 2018-01-26 | 2020-09-15 | (divisional de solicitud 1922-2020) integración compatible hacia atrás de técnicas de reconstrucción de alta frecuencia para señales de audio. |
CL2020002393A CL2020002393A1 (es) | 2018-01-26 | 2020-09-15 | (divisional de solicitud 1922-2020) integración compatible hacia atrás de técnicas de reconstrucción de alta frecuencia para señales de audio. |
Country Status (19)
Country | Link |
---|---|
US (7) | US11289106B2 (es) |
EP (1) | EP3743916A4 (es) |
JP (3) | JP2021507316A (es) |
KR (2) | KR102514418B1 (es) |
CN (6) | CN113936671A (es) |
AR (6) | AR114312A1 (es) |
AU (4) | AU2019212843B2 (es) |
BR (1) | BR112020014135A2 (es) |
CA (2) | CA3114382A1 (es) |
CL (3) | CL2020001922A1 (es) |
IL (5) | IL309769A (es) |
MA (1) | MA51701A (es) |
MX (1) | MX2020007635A (es) |
PH (1) | PH12020500603A1 (es) |
RU (2) | RU2740688C1 (es) |
SG (1) | SG11202006703XA (es) |
TW (2) | TWI702594B (es) |
UA (1) | UA123426C2 (es) |
WO (1) | WO2019148112A1 (es) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI758146B (zh) * | 2015-03-13 | 2022-03-11 | 瑞典商杜比國際公司 | 解碼具有增強頻譜帶複製元資料在至少一填充元素中的音訊位元流 |
TWI752166B (zh) * | 2017-03-23 | 2022-01-11 | 瑞典商都比國際公司 | 用於音訊信號之高頻重建的諧波轉置器的回溯相容整合 |
TWI702594B (zh) | 2018-01-26 | 2020-08-21 | 瑞典商都比國際公司 | 用於音訊信號之高頻重建技術之回溯相容整合 |
AU2019257701A1 (en) | 2018-04-25 | 2020-12-03 | Dolby International Ab | Integration of high frequency reconstruction techniques with reduced post-processing delay |
SG11202010374VA (en) | 2018-04-25 | 2020-11-27 | Dolby Int Ab | Integration of high frequency audio reconstruction techniques |
CN113113032A (zh) | 2020-01-10 | 2021-07-13 | 华为技术有限公司 | 一种音频编解码方法和音频编解码设备 |
Family Cites Families (41)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1126264C (zh) * | 1996-02-08 | 2003-10-29 | 松下电器产业株式会社 | 宽频带声音信号编码装置和宽频带声音信号编码解码装置 |
SE9903553D0 (sv) | 1999-01-27 | 1999-10-01 | Lars Liljeryd | Enhancing percepptual performance of SBR and related coding methods by adaptive noise addition (ANA) and noise substitution limiting (NSL) |
SE0004163D0 (sv) * | 2000-11-14 | 2000-11-14 | Coding Technologies Sweden Ab | Enhancing perceptual performance of high frequency reconstruction coding methods by adaptive filtering |
EP1358646B1 (en) * | 2001-02-08 | 2004-06-30 | Sensormatic Electronics Corporation | Differencially coherent combining for electronic article surveillance systems |
SE0101175D0 (sv) * | 2001-04-02 | 2001-04-02 | Coding Technologies Sweden Ab | Aliasing reduction using complex-exponential-modulated filterbanks |
US20030187663A1 (en) | 2002-03-28 | 2003-10-02 | Truman Michael Mead | Broadband frequency translation for high frequency regeneration |
RU2244386C2 (ru) * | 2003-03-28 | 2005-01-10 | Корпорация "Самсунг Электроникс" | Способ восстановления высокочастотной составляющей аудиосигнала и устройство для его реализации |
US20080260048A1 (en) * | 2004-02-16 | 2008-10-23 | Koninklijke Philips Electronics, N.V. | Transcoder and Method of Transcoding Therefore |
DE602005022641D1 (de) | 2004-03-01 | 2010-09-09 | Dolby Lab Licensing Corp | Mehrkanal-Audiodekodierung |
KR100608062B1 (ko) | 2004-08-04 | 2006-08-02 | 삼성전자주식회사 | 오디오 데이터의 고주파수 복원 방법 및 그 장치 |
TW200638335A (en) | 2005-04-13 | 2006-11-01 | Dolby Lab Licensing Corp | Audio metadata verification |
CN101140759B (zh) * | 2006-09-08 | 2010-05-12 | 华为技术有限公司 | 语音或音频信号的带宽扩展方法及系统 |
US7885819B2 (en) | 2007-06-29 | 2011-02-08 | Microsoft Corporation | Bitstream syntax for multi-process audio decoding |
US8880410B2 (en) * | 2008-07-11 | 2014-11-04 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for generating a bandwidth extended signal |
US8788555B2 (en) | 2008-07-29 | 2014-07-22 | Orange | Method for updating an encoder by filter interpolation |
US8532983B2 (en) * | 2008-09-06 | 2013-09-10 | Huawei Technologies Co., Ltd. | Adaptive frequency prediction for encoding or decoding an audio signal |
CO6440537A2 (es) * | 2009-04-09 | 2012-05-15 | Fraunhofer Ges Forschung | Aparato y metodo para generar una señal de audio de sintesis y para codificar una señal de audio |
EP2486564B1 (en) * | 2009-10-21 | 2014-04-09 | Dolby International AB | Apparatus and method for generating high frequency audio signal using adaptive oversampling |
CN103038819B (zh) * | 2010-03-09 | 2015-02-18 | 弗兰霍菲尔运输应用研究公司 | 用以使用补丁边界对准处理输入音频信号的装置及方法 |
DK2556504T3 (en) * | 2010-04-09 | 2019-02-25 | Dolby Int Ab | MDCT-BASED COMPLEX PREVIEW Stereo Encoding |
WO2011155170A1 (ja) * | 2010-06-09 | 2011-12-15 | パナソニック株式会社 | 帯域拡張方法、帯域拡張装置、プログラム、集積回路およびオーディオ復号装置 |
KR101709095B1 (ko) * | 2010-07-19 | 2017-03-08 | 돌비 인터네셔널 에이비 | 고주파 복원 동안 오디오 신호들의 프로세싱 |
KR101748756B1 (ko) * | 2011-03-18 | 2017-06-19 | 프라운호퍼 게젤샤프트 쭈르 푀르데룽 데어 안겐반텐 포르슝 에.베. | 오디오 콘텐츠를 표현하는 비트스트림의 프레임들 내의 프레임 요소 배치 |
EP2702589B1 (en) * | 2011-04-28 | 2017-04-05 | Dolby International AB | Efficient content classification and loudness estimation |
TWI792203B (zh) * | 2011-07-01 | 2023-02-11 | 美商杜比實驗室特許公司 | 用於適應性音頻信號的產生、譯碼與呈現之系統與方法 |
JP6155274B2 (ja) * | 2011-11-11 | 2017-06-28 | ドルビー・インターナショナル・アーベー | 過剰サンプリングされたsbrを使ったアップサンプリング |
TW201322743A (zh) * | 2011-11-18 | 2013-06-01 | Onlive Inc | 用於控制視訊串流之圖形使用者介面,系統及方法 |
ES2568640T3 (es) | 2012-02-23 | 2016-05-03 | Dolby International Ab | Procedimientos y sistemas para recuperar de manera eficiente contenido de audio de alta frecuencia |
EP2709106A1 (en) | 2012-09-17 | 2014-03-19 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for generating a bandwidth extended signal from a bandwidth limited audio signal |
CN116741186A (zh) | 2013-04-05 | 2023-09-12 | 杜比国际公司 | 立体声音频编码器和解码器 |
FR3008533A1 (fr) * | 2013-07-12 | 2015-01-16 | Orange | Facteur d'echelle optimise pour l'extension de bande de frequence dans un decodeur de signaux audiofrequences |
EP2830065A1 (en) * | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for decoding an encoded audio signal using a cross-over filter around a transition frequency |
EP2830053A1 (en) * | 2013-07-22 | 2015-01-28 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Multi-channel audio decoder, multi-channel audio encoder, methods and computer program using a residual-signal-based adjustment of a contribution of a decorrelated signal |
EP2881943A1 (en) * | 2013-12-09 | 2015-06-10 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for decoding an encoded audio signal with low computational resources |
EP2963645A1 (en) * | 2014-07-01 | 2016-01-06 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Calculator and method for determining phase correction data for an audio signal |
EP2980792A1 (en) | 2014-07-28 | 2016-02-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for generating an enhanced signal using independent noise-filling |
CN104217730B (zh) * | 2014-08-18 | 2017-07-21 | 大连理工大学 | 一种基于k‑svd的人工语音带宽扩展方法及装置 |
US20160188490A1 (en) * | 2014-12-26 | 2016-06-30 | Intel Corporation | Cost-aware page swap and replacement in a memory |
TWI758146B (zh) * | 2015-03-13 | 2022-03-11 | 瑞典商杜比國際公司 | 解碼具有增強頻譜帶複製元資料在至少一填充元素中的音訊位元流 |
TWI752166B (zh) | 2017-03-23 | 2022-01-11 | 瑞典商都比國際公司 | 用於音訊信號之高頻重建的諧波轉置器的回溯相容整合 |
TWI702594B (zh) | 2018-01-26 | 2020-08-21 | 瑞典商都比國際公司 | 用於音訊信號之高頻重建技術之回溯相容整合 |
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2018
- 2018-12-04 TW TW107143346A patent/TWI702594B/zh active
- 2018-12-04 TW TW109124754A patent/TWI809289B/zh active
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2019
- 2019-01-25 AR ARP190100170A patent/AR114312A1/es active IP Right Grant
- 2019-01-28 EP EP19743801.3A patent/EP3743916A4/en active Pending
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- 2019-01-28 RU RU2020128175A patent/RU2740688C1/ru active
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- 2019-01-28 KR KR1020237009765A patent/KR20230043248A/ko not_active Application Discontinuation
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2021
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2022
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